Application: gvSIG desktop » gvSIG geoprocess

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2012 gvSIG Association.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.geoprocess.algorithm.buffer;

import java.awt.BorderLayout;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import java.util.List;

import javax.swing.BorderFactory;

import javax.swing.ButtonGroup;

import javax.swing.ComboBoxModel;

import javax.swing.DefaultComboBoxModel;

import javax.swing.JCheckBox;

import javax.swing.JComboBox;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JRadioButton;

import javax.swing.JScrollPane;

import javax.swing.JTextField;

import org.gvsig.geoprocess.lib.api.GeoProcessLocator;

import org.gvsig.geoprocess.sextante.gui.algorithm.AlgorithmOutputPanel;

import es.unex.sextante.core.GeoAlgorithm;

import es.unex.sextante.core.ObjectAndDescription;

import es.unex.sextante.core.OutputObjectsSet;

import es.unex.sextante.core.ParametersSet;

import es.unex.sextante.core.Sextante;

import es.unex.sextante.dataObjects.IVectorLayer;

import es.unex.sextante.gui.algorithm.GeoAlgorithmParametersPanel;

import es.unex.sextante.gui.algorithm.OutputChannelSelectionPanel;

import es.unex.sextante.gui.core.SextanteGUI;

import es.unex.sextante.outputs.Output;

/**

 * Panel for buffer algorithm

 * @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>

 */

public class BufferParametersPanel extends GeoAlgorithmParametersPanel implements ActionListener {

        private static final long                serialVersionUID   = 1L;

        private final int                        marginSides        = 15;

        private final int                        marginBottom       = 8;

        private GeoAlgorithm                     m_Algorithm        = null;

        private JComboBox                        layers             = null;

        private JComboBox                        fields             = null;

        private JComboBox                        influenceAreas     = null;

        private JComboBox                        radialBuffers      = null;

        private JCheckBox                        selectionOnly      = null;

        private JCheckBox                        dissolveEntities   = null;

        private JCheckBox                        roundBorder        = null;

        private JTextField                       distance           = null;

        private JRadioButton                     selectDistance     = null;

        private JRadioButton                     selectField        = null;

        private List<String>                     fieldList             = new ArrayList<String>();

        private AlgorithmOutputPanel             algorithmOutputPanel  = null;

        private OutputChannelSelectionPanel      outputChannelSelectionPanel;

        private JPanel                           outputPanel;

        public BufferParametersPanel() {

                super();

        }

    public void init(GeoAlgorithm algorithm) {

            m_Algorithm = algorithm;

            initGUI();

    }

        private void initGUI() {

                this.setLayout(new BorderLayout());

                this.add(getMainJScrollPane(), BorderLayout.CENTER);

        }

        private JScrollPane getMainJScrollPane() {

                JPanel panel = new JPanel();

                GridBagLayout gbl = new GridBagLayout();

                panel.setLayout(gbl);

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.gridx = 0;

                gbc.gridy = 0;

                gbc.insets = new Insets(0, marginSides, 0, marginSides);

                panel.add(getInputPanel(), gbc);

                gbc.gridy = 1;

                panel.add(getOptionsPanel(), gbc);

                gbc.gridy = 2;

                panel.add(getOutputsPanel(), gbc);

                JScrollPane scrollPane = new JScrollPane(panel);

                return scrollPane;

        }

        /**

         * Gets the output panel (SEXTANTE)

         * @return

         */

        private JPanel getOutputChannelSelectionPanel() {

                if(outputPanel == null) {

                        try {

                                outputPanel = new JPanel();

                                outputPanel.setLayout(new BorderLayout());

                                final OutputObjectsSet ooSet = m_Algorithm.getOutputObjects();

                                final Output out = ooSet.getOutput(BufferAlgorithm.RESULT);

                                outputChannelSelectionPanel = new OutputChannelSelectionPanel(out, m_Algorithm.getParameters());

                                outputPanel.add(new JLabel(" Buffer [Vectorial]               "), BorderLayout.WEST);

                                outputPanel.add(outputChannelSelectionPanel, BorderLayout.CENTER);

                        } catch (final Exception e) {

                                Sextante.addErrorToLog(e);

                        }

                }

                return outputPanel;

        }

        /**

         * Gets the output panel

         * @return

         */

        @SuppressWarnings("unused")

        private AlgorithmOutputPanel getAlgorithmOutputPanel() {

                if(algorithmOutputPanel == null)

                    algorithmOutputPanel = new AlgorithmOutputPanel();

                return algorithmOutputPanel;

        }

        /**

         * Gets a new input panel

         * @param text

         * @param combo

         * @return

         */

        public JPanel getOutputsPanel() {

                JPanel panel = new JPanel();

                GridBagLayout gbl = new GridBagLayout();

                panel.setLayout(gbl);

                panel.setBorder(BorderFactory.createTitledBorder(GeoProcessLocator.getGeoProcessManager().getTranslation("outputs")));

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.insets = new Insets(0, marginSides, marginBottom, marginSides);

                panel.add(getOutputChannelSelectionPanel(), gbc);

                return panel;

        }

        /**

         * Gets a new input panel

         * @param text

         * @param combo

         * @return

         */

        public JPanel getInputPanel() {

                JPanel panel = new JPanel();

                GridBagLayout gbl = new GridBagLayout();

                panel.setLayout(gbl);

                panel.setBorder(BorderFactory.createTitledBorder(GeoProcessLocator.getGeoProcessManager().getTranslation("input")));

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.insets = new Insets(0, marginSides, marginBottom, marginSides);

                panel.add(getComboLayers(), gbc);

                return panel;

        }

        /**

         * Gets a new options panel

         * @param text

         * @param combo

         * @return

         */

        public JPanel getOptionsPanel() {

                JPanel panel = new JPanel();

                GridBagLayout gbl = new GridBagLayout();

                panel.setLayout(gbl);

                panel.setBorder(BorderFactory.createTitledBorder(GeoProcessLocator.getGeoProcessManager().getTranslation("options")));

                ButtonGroup group = new ButtonGroup();

                group.add(getRadioSelectDistance());

            group.add(getRadioSelectField());

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.insets = new Insets(0, marginSides, marginBottom, marginSides);

                panel.add(getRadioSelectField(), gbc);

                gbc.gridy = 1;

                gbc.insets = new Insets(0, marginSides + 10, marginBottom, marginSides);

                panel.add(getComboFields(), gbc);

                gbc.gridy = 2;

                gbc.insets = new Insets(0, marginSides, marginBottom, marginSides);

                panel.add(getRadioSelectDistance(), gbc);

                gbc.gridy = 3;

                gbc.insets = new Insets(0, marginSides + 10, marginBottom, marginSides);

                panel.add(getTextDistance(), gbc);

                gbc.gridy = 4;

                gbc.insets = new Insets(0, marginSides, marginBottom, marginSides);

                panel.add(getCheckSelectedGeom(), gbc);

                gbc.gridy = 5;

                panel.add(getCheckDissolveEntities(), gbc);

                gbc.gridy = 6;

                panel.add(getCheckRoundBorder(), gbc);

                gbc.gridy = 7;

                panel.add(getComboInfluenceAreas(), gbc);

                gbc.gridy = 8;

                panel.add(getComboRadialBuffers(), gbc);

                return panel;

        }

        /**

         * Gets a ComboBox

         * @return

         */

        public JComboBox getComboLayers() {

                if(layers == null) {

                        layers = new JComboBox();

                        ComboBoxModel comboModel = new DefaultComboBoxModel(getLayerList());

                        layers.setModel(comboModel);

                        layers.addActionListener(this);

                }

                return layers;

        }

        /**

         * Gets a influence areas ComboBox

         * @return

         */

        public JComboBox getComboInfluenceAreas() {

                if(influenceAreas == null) {

                        influenceAreas = new JComboBox();

                        for (int i = 0; i < BufferAlgorithm.sOptions.length; i++) {

                                influenceAreas.addItem(BufferAlgorithm.sOptions[i]);

                        }

                        influenceAreas.addActionListener(this);

                }

                return influenceAreas;

        }

        /**

         * Gets a influence areas ComboBox

         * @return

         */

        public JComboBox getComboRadialBuffers() {

                if(radialBuffers == null) {

                        radialBuffers = new JComboBox();

                        radialBuffers.addItem("1");

                        radialBuffers.addItem("2");

                        radialBuffers.addItem("3");

                        radialBuffers.addActionListener(this);

                }

                return radialBuffers;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getCheckSelectedGeom() {

                if(selectionOnly == null) {

                        selectionOnly = new JCheckBox(GeoProcessLocator.getGeoProcessManager().getTranslation("Selected_geometries"));

                }

                return selectionOnly;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getCheckDissolveEntities() {

                if(dissolveEntities == null) {

                        dissolveEntities = new JCheckBox(GeoProcessLocator.getGeoProcessManager().getTranslation("Dissolve_entities"));

                }

                return dissolveEntities;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getCheckRoundBorder() {

                if(roundBorder == null) {

                        roundBorder = new JCheckBox(GeoProcessLocator.getGeoProcessManager().getTranslation("Round_border"));

                }

                return roundBorder;

        }

        /**

         * Gets a ComboBox

         * @return

         */

        public JComboBox getComboFields() {

                if(fields == null) {

                        fields = new JComboBox();

                        loadFieldsInAreaCombo();

                        fields.setEnabled(true);

                }

                return fields;

        }

        private void loadFieldsInAreaCombo() {

                List<String> fieldList = getFieldList();

                getComboFields().removeAllItems();

                for (int i = 0; i < fieldList.size(); i++) 

                        getComboFields().addItem(fieldList.get(i));

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JTextField getTextDistance() {

                if(distance == null) {

                        distance = new JTextField("0.0");

                        distance.setEnabled(false);

                }

                return distance;

        }

        /**

         * Gets a JRadioButton

         * @return

         */

        public JRadioButton getRadioSelectDistance() {

                if(selectDistance == null) {

                        selectDistance = new JRadioButton(GeoProcessLocator.getGeoProcessManager().getTranslation("area_distance"));

                        selectDistance.addActionListener(this);

                        selectDistance.setSelected(false);

                }

                return selectDistance;

        }

        /**

         * Gets a JRadioButton

         * @return

         */

        public JRadioButton getRadioSelectField() {

                if(selectField == null) {

                        selectField = new JRadioButton(GeoProcessLocator.getGeoProcessManager().getTranslation("area_field"));

                        selectField.addActionListener(this);

                        selectField.setSelected(true);

                }

                return selectField;

        }

        //------------------------------------------------------------

        /*

         * (non-Javadoc)

         * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)

         */

        public void actionPerformed(ActionEvent e) {

                if(e.getSource() == getRadioSelectDistance()) {

                        getTextDistance().setEnabled(true);

                        getComboFields().setEnabled(false);

                }

                if(e.getSource() == getRadioSelectField()) {

                        getTextDistance().setEnabled(false);

                        getTextDistance().setText("0.0");

                        getComboFields().setEnabled(true);

                }

                if(e.getSource() == getComboLayers()) {

                        loadFieldsInAreaCombo();

                }

        }

        @Override

    public void assignParameters() {

                try {

                        ParametersSet params = m_Algorithm.getParameters();

                        params.getParameter(BufferAlgorithm.LAYER).setParameterValue(getSelectedVectorLayer());

                        params.getParameter(BufferAlgorithm.FIELD).setParameterValue(getFieldPosition());

                        params.getParameter(BufferAlgorithm.SELECTED_GEOM).setParameterValue(getCheckSelectedGeom().isSelected());

                        double dist = 0;

                        try {

                                dist = new Double(getTextDistance().getText());

                        } catch(NumberFormatException e) {

                        }

                        params.getParameter(BufferAlgorithm.DISTANCE).setParameterValue(dist);

                        params.getParameter(BufferAlgorithm.DISSOLVE).setParameterValue(getCheckDissolveEntities().isSelected());

                        params.getParameter(BufferAlgorithm.ROUND_BORDER).setParameterValue(getCheckRoundBorder().isSelected());

                        params.getParameter(BufferAlgorithm.AREA).setParameterValue(getComboInfluenceAreas().getSelectedIndex());

                        params.getParameter(BufferAlgorithm.RING_NUMBER).setParameterValue(getComboRadialBuffers().getSelectedIndex());

                        OutputObjectsSet ooSet = m_Algorithm.getOutputObjects();

                        Output out = ooSet.getOutput(BufferAlgorithm.RESULT);

                        //Reponer estas l?neas para cambiar el panel de salida y comentar la siguiente

                        //AlgorithmOutputPanel fsp = getAlgorithmOutputPanel();

                        //out.setOutputChannel(new CompositeSourceOutputChannel(fsp.getOutputParameters()));

                 out.setOutputChannel(outputChannelSelectionPanel.getOutputChannel());

                } catch (Exception e) {

                        Sextante.addErrorToLog(e);

                }

        }

        @Override

        public void setOutputValue(String arg0, String arg1) {

        }

        @Override

        public void setParameterValue(String arg0, String arg1) {

        }

        /**

         * Gets the input layer list

         * @return

         */

        private ObjectAndDescription[] getLayerList() {

                IVectorLayer[] layers = SextanteGUI.getInputFactory()

                                        .getVectorLayers(IVectorLayer.SHAPE_TYPE_WRONG);

                ObjectAndDescription[] oad = new ObjectAndDescription[layers.length];

                for (int i = 0; i < layers.length; i++)

                        oad[i] = new ObjectAndDescription(layers[i].getName(), layers[i]);

                return oad;

        }

        /**

         * Gets the selected vector layer in the JComboBox

         * @return

         */

        private IVectorLayer getSelectedVectorLayer() {

                if(layers.getSelectedItem() != null)

                        return (IVectorLayer)((ObjectAndDescription)layers.getSelectedItem()).getObject();

                return null;

        }

        /**

         * Gets the field list of the selected layer

         * @return

         */

        @SuppressWarnings("unchecked")

        public List<String> getFieldList() {

                IVectorLayer layer = getSelectedVectorLayer();

                List<String> data = new ArrayList<String>();

                fieldList.clear();

                for (int i = 0; i < layer.getFieldCount(); i++) {

                        Class type = layer.getFieldType(i);

                        fieldList.add(layer.getFieldName(i));

                        if(Number.class.isAssignableFrom(type))

                                data.add(layer.getFieldName(i));

                }

                return data;

        }

        private int getFieldPosition() {

                if(getComboFields().getSelectedItem() != null) {

                        String label = getComboFields().getSelectedItem().toString();

                        for (int i = 0; i < fieldList.size(); i++) {

                                if(fieldList.get(i).equals(label)) {

                                        return i;

                                }

                        }

                }

                return -1;

        }

}